US3258316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metal borides
Assignee: MSA Research Corp
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Filing: 1963-07-29
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Granted: 1966-06-28
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Tepper Frederick
- 👤 Mausteller John Wilson
- 👤 Luft Ludwig
- 👤 Kabi Sanat Kumar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:57
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR THE PREPARATION OF A METAL BORIDE BY THE STEP OF REACTING UNDER INERT ATMOSPHERE AND AT A TEMPERATURE OF ABOUT 1500*-2000*F., AND IN THE CASE OF NICKEL AT A TEMPERATURE OF ABOUT 1200*-2000*F., A METAL COMPONENT SELECTED FROM THE CLASS CONSISTING OF METALS OF THE PERIODIC GROUPS IV-A, V-A, III-A INCLUDING THE RARE EARTH AND ACTINIDE ELEMENTS, MAGNESIUM, CALCIUM, STRONTIUM, BARIUM, IRON, NICKEL, CHROMIUM, AND TUNGSTEN, AND THE HALIDES, SULFIDES, OXIDES, AND MIXED METAL OXIDES THEREOF, WITH A BORON COMPONENT SELECTED FROM THE CLASS CONSISTING OF ELEMENTAL BORON AND THE HALIDES, OXIDES, MIXED METAL OXIDES, AND HYDRIDES OF BORON, WHILE SAID REAGENTS ARE SUSPENDED IN A MOLTEN ALKALI METAL SELECTED FROM THE CLASS CONSISTING OF SODIUM, POTASSIUM, AND MIXTURES OF SODIUM AND POTASSIUM, AND SEPARATING SAID METAL BORIDE FROM SAID ALKALI METAL.
Claim 2
Dependent Claim
135 words
A PROCESS FOR THE PREPARATION OF A METAL BORIDE BY THE STEP OF REACTING UNDER INERT ATMOSPHERE AND AT A TEMPERATURE OF ABOUT 1500*-2000*F., AND IN THE CASE OF NICKEL AT A TEMPERATURE OF ABOUT 1200*-2000*F., A METAL COMPONENT SELECTED FROM THE CLASS CONSISTING OF METALS OF THE PERIODIC GROUPS IV-A, V-A, III-A INCLUDING THE RARE EARTH AND ACTINIDE ELEMENTS, MAGNESIUM, CALCIUM, STRONTIUM, BARIUM, IRON, NICKEL, CHROMIUM, AND TUNGSTEN, AND THE HALIDES, SULFIDES, OXIDES, AND MIXED METAL OXIDES THEREOF, WITH A BORON COMPONENT SELECTED FROM THE CLASS CONSISTING OF ELEMENTAL BORON AND THE HALIDES, OXIDES, MIXED METAL OXIDES, AND HYDRIDES OF BORON, WHILE SAID REAGENTS ARE SUSPENDED IN A MOLTEN ALKALI METAL SELECTED FROM THE CLASS CONSISTING OF SODIUM, POTASSIUM, AND MIXTURES OF SODIUM AND POTASSIUM, AND SEPARATING SAID METAL BORIDE FROM SAID ALKALI METAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |